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How do WaterCAD and WaterGEMS calculate head losses through a hydrant lateral?When choosing "true" for "Include Lateral Loss" for a hydrant, what friction coefficient is used to compute friction headlosses?
Problem ID#: 42960
Hydrant lateral losses are calculated by the pressure engine the same asany pipe (the lateral pipe is actually loaded into the model), using thesupplied lateral diameter, minor loss coefficient and length.Additionally, the engine assumes the following friction coefficientvalues:Darcy Weisbach e: 0.0009Hazen Williams C: 130.0Mannings n: 0.012
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Junction vs. Hydrant